NYC89GA116

NTSB accident investigation · Bell 206B · Airville, PA · April 12, 1989

Accident · FatalFinal report
Date
April 12, 1989, 09:44 local (13:44 UTC)
Place
Airville, PA
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N157PBell 206B
Weather
Visual (VMC) · Day
Status
Completed · report September 30, 1991
Report
Approved by Office Director
Safety recommendations
Yes
FAA report
19890412007809A
Case key
36301

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot was unable to see and avoid the unmarked power lines stretched across the river. A contributing factor was the lack of visual clues.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight collision with objectManeuvering
Terrain condition - high obstruction(s)Factor
Object - wire,transmissionFactor
Visual lookout - inadequatePilot in commandCause
Information insufficientFactor

Analysis

The helicopter was being operated by the pa state police over the susquehanna river searching for a possible victim reported to have jumped into the river. It was travelling in a southwesterly direction when it hit unmarked power lines stretched east and west across, and about 160 ft above, the river. The wreckage was located in about 10 feet of water. The power lines were supported by 60-foot wooden poles set back into the wood line, and were not shown on any of the area charts.

Aircraft

Registration
N157P
Reported as
Bell 206B
Category
Helicopter
Serial number
2771
Airframe hours
4,271
Engine
Allison 250-L20B, 420 horsepower, turbo shaft
Damage
Destroyed
Flight
Public aircraft · Part 91
Operator
Commonwealth Of Pa., doing business as Pa State Police
Registered owner
Commenwealth Of Pennsylvania
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · April 11, 1989 · 2 hours before
Departed
N/A · Lancaster, PA

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
39
Certificates
Commercial, Military
Instrument ratings
Helicopter
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Right
Toxicology
Performed
Flight hours
3,283 total · 719 in this make and model · 3,283 as pilot in command · 84 in the last 90 days · 48 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 8 knots
Visibility
12 statute miles
Lowest ceiling
8,000 ft broken
Temperature
46 °F, dew point 37 °F
Altimeter
30.00 inHg
Observed at
LNS, 10 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.